Synchronization of digital content

ABSTRACT

Aspects of the present disclosure relate to the sharing of synchronization information corresponding to content among devices in a communication network. An originating device collects synchronization information related to the presentation of content to a user via the originating device. The synchronization information is defined according to reference points related to the presentation of the content to the user via the originating device, including a current state of the presentation of the content and/or additional information obtained during the presentation of the content. Based on detection of a synchronization event, the originating device transmits the collected synchronization information, resulting in the receipt of the synchronization information by one or more receiving devices. Thereafter, the presentation of the content to the user on one of the receiving devices can incorporate the synchronization information collected and transmitted by the originating device.

BACKGROUND

Generally described, computing devices and communication networksfacilitate the collection and exchange of information. In a commonapplication, computing devices, such as personal computing devices, canutilize a wide area communication network, generally referred to as theInternet, to access content, or other data, from other computing devicesassociated with content providing entities. The specific design/functionof each computing device can vary the type of content exchanged betweenthe computing devices.

Users can request data from a content providing entity so that thecontent is delivered to one or more computing devices in a relatively“real time” basis. For example, users can request content from a networkresource (e.g., a Web site) for immediate rendering on a computingdevice display screen or they can request the immediate transfer ofcontent, such as a document or data file, from a network resource or Webservice for storage on the computing device. In another example, userscan transmit a request, or initiate a transaction, that results in thedownloading or streaming of content to a computing device. Typically,the content providing entity would initiate the transfer upon receipt ofthe request from the computing device.

In one application, various computing devices associated with a user ora user account have access to different representations of the contentprovided by content providing entities. For example, a user may beassociated with a wireless computing device corresponding to anelectronic book reader (“e-book reader”) that has obtained a digitalrepresentation of content (e.g., a digital publication that can bepresented on an e-book reader) via a communication network (e.g., awireless communication network). The same user may also be associatedwith a personal computing device that has obtained a separaterepresentation of the same content (e.g., a copy of the digitalpublication that can be presented on a display associated with thee-book reader) via the same or a different communication network. Stillfurther, the user may be associated with a digital audio player that hasalso obtained a separate representation of the same content (e.g., anaudio book that can be audibly presented via headphones/speakers) fromthe same or a different communication network.

Depending on the capabilities and functionality associated with eachrespective device and the specific nature of the content, a useraccesses content via a presentation interface provided, or otherwiseassociated, with a specific device (e.g., a display on a wireless e-bookreader device). In some devices, the user can provide, or associate,additional information with the content, such as annotations, bookmarks,excerpts, etc., during the presentation of the content on a specificdevice. However, the state/progress of the presentation of the specificrepresentation of the content at one of the specific devices, as well asany additional information provided by the user during the presentation,is not readily provided to other devices associated with the user, oruser account.

BRIEF DESCRIPTION OF THE DRAWINGS

The foregoing aspects and many of the attendant advantages will becomemore readily appreciated by reference to the following detaileddescription, when taken in conjunction with the accompanying drawings,wherein:

FIG. 1 is a block diagram illustrative of a content managementenvironment for use in facilitating the sharing of synchronizationinformation between devices based on determination of synchronizationevents;

FIG. 2 is a block diagram illustrative of components of a device for usein sharing synchronization information based on a determination of asynchronization event;

FIGS. 3A-3C are block diagrams of the content management environment ofFIG. 1 illustrating various embodiments for the transmission ofsynchronization information based on a determination of asynchronization event;

FIGS. 4A and 4B are block diagrams of the content management environmentof FIG. 1 illustrating an embodiment for the transmission ofsynchronization information between peer devices based on adetermination of a synchronization event;

FIG. 5 is a block diagram of the content management environment of FIG.1 illustrating an embodiment for processing a synchronization event byan originating computing device;

FIG. 6 is a block diagram of the content management environment of FIG.1 illustrating an embodiment for the transmission of synchronizationinformation between peer devices based on a determination of asynchronization event;

FIG. 7 is a flow diagram of a content synchronization informationgeneration routine implemented by a device for transmittingsynchronization information based on a determination of asynchronization event;

FIG. 8 is a flow diagram of a content synchronization informationprocessing routine implemented by a content management component forprocessing and transmitting synchronization information;

FIG. 9 is a flow diagram of a content synchronization informationprocessing routine implemented by a device for incorporatingsynchronization information associated with content accessible by thedevice;

FIG. 10 is an illustrative interface generated on a wireless device forconfiguring the transmittal of synchronization information based on adetermination of a synchronization event;

FIGS. 11A and 11B are illustrative interfaces generated on a wirelessdevice for configuring the incorporation of synchronization informationassociated with content accessible by the wireless device;

FIG. 12A is an illustrative display associated with a consumer devicefor configuring the incorporation of synchronization informationassociated with content accessible by the consumer device;

FIG. 12B is an illustrative display associated with a consumer devicefor configuring the transmittal of synchronization information based ona determination of a synchronization event; and

FIGS. 13A and 13B are illustrative interfaces generated on a wirelessdevice based on the incorporation of synchronization informationassociated with content accessible by the wireless device.

DETAILED DESCRIPTION

Generally described, aspects of the present disclosure relate to themanagement of content and/or information related to the content.Specifically, aspects of the present disclosure relate to sharingsynchronization information associated with content among devices in acommunication network. A first device (e.g., the “originating device”)collects synchronization information related to the presentation ofcontent to a user via the originating device. Content can refer to anydata that can be directly or indirectly accessed by a user, including,but not limited to, multi-media data, digital images, digital video,displayable text, audio data, electronic documents, electronicpublications, computer-executable code, portions of the above, and thelike. Additionally, the synchronization information is defined accordingto reference points, or tracking points, related to the presentation ofthe content originating device and can include a current state of thepresentation of the content on the originating device or additionalinformation obtained during the presentation of the content (e.g.,annotations, bookmarks, excerpts, etc.). The presentation of the contentwill vary as a function of the capabilities and configuration of thedevice (e.g., a portable e-book reader vs. a mobile phone) and theformat of the content (e.g., a digital publication vs. a video).Illustratively, based on a determination of a synchronization event, theoriginating device transmits the collected synchronization information,resulting in the receipt of the synchronization information by one ormore receiving devices. Thereafter, the presentation of the content tothe user on one of the receiving devices can incorporate thesynchronization information collected and transmitted by the originatingdevice.

For purposes of illustrative examples, a user may have three devices(e.g., a wireless e-book reader, an audio player and a desktop computer)among which synchronization information is to be shared for each digitalrepresentation of the same content. The user has specified that thepresentation of content, such as a digital representation of TheAdventures of Tom Sawyer, contained on each device is to remainsynchronized. The user accesses the digital representation of TheAdventures of Tom Sawyer on the wireless e-book reader, making thewireless e-book reader an originating device. During the presentation ofthe digital publication, a synchronization component on the wirelesse-book reader collects synchronization information related to thepresentation of that content. The synchronization information caninclude information related to the relative progress of thepresentation, or a state of presentation, of the digital representationof the content (e.g., the digital representation of The Adventures ofTom Sawyer). Relative progress can be defined according to referencepoints, or tracking points, associated with the digital representationof the content (e.g., a specific chapter, sub-chapter, paragraph, wordgrouping/block, word, etc.).

In addition to collecting synchronization information, the wirelesse-book reader can also determine when a synchronization event occurs,such as the user setting down the wireless e-book reader, and transmitthe collected synchronization information to the other devices. Thetransmitted synchronization information may then be used by the otherdevices to synchronize the presentation of The Adventures of Tom Sawyeron those devices with that of the wireless e-book reader. Accordingly,should the user elect to continue reading The Adventures of Tom Sawyeron the desktop computer, the desktop computer would also beginpresentation of the content at the location where the user stoppedpresentation of the digital representation of the content on the e-bookreader. The series of collecting synchronization information, detectinga synchronization event, transmitting synchronization information andsynchronizing the presentation of content among devices may continue asthe user progresses through the content. Through this process,regardless of which device the user selects or the type of digitalrepresentation selected, the presentation of the content will resumefrom where the user last stopped.

In accordance with another illustrative embodiment, a user utilizes adevice, such as a personal computer, for the presentation of digitalcontent (e.g., a digital representation of The Adventures of TomSawyer), making the personal computer the originating device. In themanner described above, during the presentation of the content to theuser, a synchronization component on the personal computer collectssynchronization information related to the presentation of the digitalrepresentation of The Adventures of Tom Sawyer to the user, whichincludes progress information corresponding to a current state of thepresentation of the content, as well as annotation and bookmarkinformation provided by the user during the presentation.

During the presentation of the digital representation of The Adventuresof Tom Sawyers the synchronization component also determines that one ormore synchronization events have occurred. In this example, assume theoriginating device is a personal computer with a constant communicationnetwork connection and constant power supply. Accordingly, in thisexample, the synchronization component has been configured to determinetime-based synchronization event (e.g., a synchronization event everytwo minutes). Accordingly, at the specified time intervals, thesynchronization component transmits the synchronization informationassociated with the content to the content management system.

In this illustrative example, the content management system processesthe received synchronization information associated with the content atthe originating device (e.g., the personal computer) and determines oneor more receiving devices that should receive at least a subset of thesynchronization information. The determination of which device shouldreceive synchronization information and/or the determination of thesubset of the synchronization information that each selected receivingdevice will receive is based on the configuration, capabilities oravailable functionality associated with each potential receiving device.For purposes of this illustrative example, assume that at least one ofthe selected receiving devices includes a consumer device for use in avehicle (e.g., a car radio or portable media player). The consumerdevice has access to a digital representation of The Adventures of TomSawyer in the form of an audio version of the content. Due to itscapabilities, the consumer device can only incorporate synchronizationinformation related to the progress of the previous presentation of thecontent via the originating device (e.g., the computing device). Thus,the consumer device cannot incorporate synchronization information, suchas annotation or bookmark information, based on the limitations of theconsumer device or based on a configuration associated with the consumerdevice. However, when the user accesses the representation of thecontent (e.g., the audio version) via the consumer device, the consumerdevice begins the presentation of the content at the same referencepoint, or substantially the same reference point, in which thepresentation of the content was stopped on the originating computingdevice. In this case, the progress information has been incorporated forpurposes of synchronizing the audio representation of the content.Accordingly, if necessary, the receiving device can process the progressinformation, such as transforming the format of the progressinformation, in a manner suitable to be applicable with the presentationof the audio representation.

With continued reference to the illustrative example, by utilizing acommunication network, such as a wireless communication network ordirect communication link, the synchronization process can be repeatedas the originating device transmits the user's progress during thepresentation of the content (e.g., the audio version) to the otherdevices associated with the user or user account. Assume that the useris also associated with a mobile phone receiving device that has beenselected to receive the synchronization information generated by theconsumer device (e.g., the new originating device). The mobile phone hasaccess to a representation of the content in the form of an abridgedversion of the digital representation of The Adventures of Tom Sawyerfor presentation on a display screen associated with the mobile phone.In this example, the mobile phone has previously received a subset ofthe synchronization information generated by a personal computer in theform of the progress information, annotations, and bookmarks for theportions of content included in the abridged version. Upon receipt ofthe synchronization information from the consumer device, the mobilephone utilizes the synchronization information, including the mostrecent progress information, to continue the presentation of the contentto the user. Additionally, the mobile phone also makes the annotationand bookmark information (generated by the computer device) available tothe user.

In a further illustrative example, the content management system and/ororiginating device can incorporate aspects of a peer-to-peer devicedistribution model for distributing the synchronization information toreceiving devices. In one application, the originating device collectsthe synchronization information and transmits the synchronizationinformation to the content management system upon detection of asynchronization event, such as in any of the manners described above.For example, assume that each student in a classroom can access arepresentation of content (e.g., a digital representation of Romeo andJuliet) via a personal computer as part of a collaborative effort toreview a historically significant piece of literature. Based onconfiguration information associated with each personal computer, eachstudent's progress related to the presentation of Romeo and Juliet andany additional information in the form of annotations, excerpts, and/orbookmarks is collected as synchronization information and is preparedfor transmission. The transmission may, for example, occur uponexpiration of an allotted time period to access the content (e.g., asynchronization event corresponding to the expiration of the timeperiod).

In a first application, the content management system identifies thereceiving devices that should receive at least a subset of thesynchronization information, namely, receiving devices associated withthe other students in the classroom as well as a receiving deviceassociated with a teacher. Additionally, because each personal computeris configured to operate as an originating device, the contentmanagement system can process the incoming synchronization informationto generate a consolidated set of synchronization information, which caninclude the filtering of inconsistent synchronization information,conflict resolution, and/or integration of synchronization associatedwith multiple users/devices. To distribute the synchronizationinformation, however, the content management system transmits anotification to one or more peer devices (possibly including theoriginating device) requesting that these devices serve as sources ofthe synchronization information and provide the selected receivingdevices with the synchronization information if needed. The contentmanagement system then transmits notifications to the selected receivingdevices to request the synchronization information from an identifiedpeer device. With regard to the illustrative example, in the firstapplication, one or more of the devices associated with the studentswould be utilized to transmit the consolidated synchronizationinformation. Devices associated with the same students can then beconfigured to request and receive a subset of the collectedsynchronization information, such as bookmarks, annotations, andexcerpts, while excluding the incorporation of progress information foreach individual originating device. Additionally, devices associatedwith a teacher or facilitator can be configured to request and receive adifferent subset of the collected synchronization information, includingprogress information associated with all the devices in addition to theannotation, bookmark and excerpt information.

In a second application, the originating device again collects thesynchronization information. However, upon detection of asynchronization event, the originating device does not transmit thesynchronization information to a separate content management system.Instead, a content management component associated with the originatingdevice transmits the synchronization information to one or more peerdevices known to the originating device to be eligible to receive thesynchronization information (e.g., peer devices associated with the sameuser or user account). Additionally, each receiving peer device can inturn transmit to other peer devices known to the receiving peer deviceto be eligible to receive the synchronization information. Upon receiptof the incoming synchronization information, each content managementcomponent can incorporate additional synchronization informationcollected on that specific device, filter inconsistent informationand/or perform other conflict resolution. Thus, in the secondapplication, the synchronization information can be propagated to thepeer devices without need for a central source (e.g., the contentmanagement system).

In yet another illustrative example, an originating device can beconfigured to vary the synchronization information that is collected bythe synchronization component, the events that are to be consideredsynchronization events, and/or the receiving devices that receive thesynchronization information (directly or indirectly) from theoriginating devices. With regard to the information that is collected assynchronization information, a device, such as a wireless e-book reader,can generate interfaces for allowing a user to identify specific data ortypes of data that should be collected as synchronization information.With reference to the previous example related to the collaborativestudent effort, each computing device may be configured such that onlyannotations, bookmarks or excerpts generated by the students arecollected as synchronization information because each student's relativeprogress in the presentation of the content will not be shared.

In another example related to the configuration of synchronizationinformation, a user may wish to have only portions of the additionalinformation generated by the user included in the synchronizationinformation. For example, the user may configure the synchronizationinformation to include only the content excerpts generated by clipboardfunctionality. In a further example related to the configuration ofsynchronization information, a user listening to an audible format of adigital publication may be presented with selectable controls that allowthe user to specify specific reference points in the presentation of theaudible content (e.g., points of progress) that will be synchronized tothe user's other device (e.g., skipping forward or moving backward). Instill another example related to the configuration of synchronizationinformation, a user may be presented with various screen interfaces,such as a network resource, in which the user is able to manuallyindicate progress or adjust progress that is synchronized to the user'sdevices. With regard to this example, a screen interface may allow theuser to manually track progress associated with the user reading a hardcopy of a publication so that digital copies of the same publication aresynchronized in accordance with the user's progress in the hard copy ofthe publication. Still further, the synchronization information caninclude information related to settings for the presentation of thecontent, including playback speed, fonts, colors, and/or othercustomizable settings related to the device, the content or the user.

As mentioned above, a synchronization event can be determined based onone or more inputs associated with the device (e.g., power levels,wireless communication network strength, motion sensors, timers,activation of headphones/speakers, etc.). In another aspect, thesynchronization event can correspond to an expressed instruction/commandissued by the user to synchronize information related to the contentbeing presented (e.g., “record my last page read”). As will beappreciated, a synchronization event can correspond to any type of inputor occurrence detectable by the device and the ones provided herein areonly illustrative examples and not to be considered limiting. Toconfigure the determination of synchronization events, a device, such asa mobile phone, can generate interfaces for allowing a user to identifyspecific types of device data that should be monitored for determiningsynchronization events or establishing thresholds for establishingsynchronization events, or both. For example, a user or systemadministrator can specify a synchronization event for a portable deviceaccording to minimum power level (e.g., transfer the synchronizationinformation before the device powers off, loses communicationcapabilities, among other possibilities). In another example, a user canspecify a synchronization event for a portable device based on acommunication signal strength criteria (minimum sustained communicationsignal strength). In a further example, a user can specify asynchronization event for a device based on a determination by acommunication management component of an anticipated unavailability ofthe device to establish communication some time in the near future. Instill another example, a user can specify a synchronization event for adevice based on sensors associated with the operation of the deviceduring the presentation of content, such as motion detectors indicativeof the device being set down, timers indicative of longer periods ofinactivity, sensors detecting that headphones/speakers are available,and the like. Still further, some devices, such as portable devices, canfurther be configured to limit the number of synchronization events thatoccur to preserve battery life.

With regard to the information that specifies which receiving devicesreceive synchronization information (directly or indirectly), theoriginating devices can generate various interfaces that are presentedto the users. The interfaces can include controls for selecting specificdevices or types of devices that should receive synchronizationinformation. For example, a user account may include two wireless e-bookreaders, one e-book reader for a user and the other e-book reader forthe user's child. In this example, the user can configure, via aninterface generated by an originating device, that the other e-bookreader associated with user's account should not receive thesynchronization information even though the second e-book reader has arepresentation of the content. In another example, a user sharing anaccount with three other individuals may generally specify that thesynchronization information shared between the devices should be limitedto only annotations and not each individual user's progress through thepresentation of content. However, the same user can specify that forspecific pieces of content (e.g., a specific work of literature) ortypes of content (e.g., content related to holiday materials), thesynchronization information will include additional informationincluding progress information.

In still another example, a user account may be associated with ane-book reader that has advanced functionality for annotating andpresenting content. Additionally, the user account may be associatedwith a personal computing device that has a software application forpresenting the same digital publication without any of the advancedfunctionality. In this example, the user (or a system administrator) canlimit the transmission of any synchronization information related to theadvanced functionality of the e-book reader so that it is nottransmitted to the personal computing device.

In accordance with one aspect, in response to a determinedsynchronization event, the originating device transmits synchronizationinformation to a content management system (described below) via awireless communication network. Through implementation of a “pull”model, the content management system processes the receivedsynchronization information associated with the representation of thecontent (e.g., the digital publication) and identifies any other deviceassociated with the user or user account that should receive thesynchronization information. For example, the content management systemmay specify that any other device associated with the user or useraccount should have access to a representation of the content (possiblyin a different format) corresponding to the digital publication. Thecontent management system then transmits a synchronization notificationmessage to one or more of the devices (the “receiving devices”)indicating that synchronization information is available for thecontent. Each receiving computing device then processes the notificationand in accordance with its own configuration settings and networkavailability, transmits requests for the synchronization informationfrom the content management system (or other appropriate source).

In accordance with a “push” model, the content management systemprocesses the received synchronization information associated with therepresentation of the content (e.g., the digital publication) and againidentifies any other device associated with the user or user accountthat should receive the synchronization information related to therepresentation of the content. In this model, however, the contentmanagement system transmits the actual synchronization information toone or more receiving devices via a communication network.

Regardless of whether a “pull” or “push” model, or any otherdistribution model, is implemented, upon receipt of the synchronizationinformation, each receiving device processes the synchronizationinformation to incorporate the synchronization information with therepresentation(s) of the content associated with the receiving device.For example, based on incorporation of progress information included inthe synchronization information, a hand-held computer receiving devicecan automatically begin a presentation of a representation of thecontent (e.g., another copy of the digital publication) at the samereference point in which the presentation was stopped on the wirelesse-book reader.

As used herein, the information collected and/or generated by theoriginating device will be collectively referred to as “synchronizationinformation.” However, reference to “synchronization information” doesnot imply any limitation as to any singular type or specific instance ofsynchronization information or any combination of synchronizationinformation. Additionally, reference to “originating device,” “receivingdevice,” or “device” will not necessarily be limited to any particulartype of device or to the illustrative examples of devices describedherein. Further, reference to the access of content via a device as the“presentation of the content” will not necessarily be limited to anyparticular type or form of presentation of content (e.g., visual, aural,etc.) or as to a particular format for the content. Still further,although the term wireless device is used in this document, the termrepresents any type of device having a component for communicating withone or more other devices via one or more communication paths. Thecommunication paths can include wireless communication paths (viainfrared, RF, optical, terrestrial, satellite communication media,etc.), wired communication paths, or a combination thereof. Althoughaspects of the present disclosure will be described with regard to anillustrative communication device environment and componentinteractions, communication protocols, flow diagrams and interfaces, oneskilled in the relevant art will appreciate that the disclosedembodiments are illustrative in nature and should not be construed aslimiting.

With reference now to FIG. 1, a block diagram illustrative of a contentmanagement environment 100 for managing synchronization informationrelated to content among a plurality of devices will be described. Asillustrated in FIG. 1, content management environment 100 includes acontent management system 102 for obtaining synchronization informationtransmitted from a device serving as an originating device upondetermination of a synchronization event. Additionally, the contentmanagement system 102 can determine one or more devices to serve asreceiving devices and cause the transmission of at least a subset of thesynchronization information to the receiving devices.

As illustrated in FIG. 1, the content management system 102 can includean external data source interface component 104 for obtaining externalinformation from network-based resources, such as informationcorresponding to a user associated with the originating device orselected receiving devices. The external data source interface component104 may also be utilized to cause the transmission of information to oneor more receiving devices. The content management system 102 can alsoinclude a device interface component 106 for obtaining synchronizationinformation from various originating devices and/or transmittingsynchronization information to the receiving devices directly. Thecontent management system 102 can further include a data processingcomponent 108 for processing the synchronization information obtainedfrom the originating device or devices. The data processing component108 can also determine one or more devices that will be receivingdevices for specific synchronization information and, as appropriate, todetermine specific subsets of the synchronization information eachreceiving device will receive. The content management system 102 canfurther be associated with a content management data store 110 forstoring information obtained by the interface components 104, 106 and/orutilized by the data processing component 108, as will be explained ingreater detail below.

One skilled in the relevant art will appreciate that the contentmanagement system 102 may be operable on one or more computing devices,such as server computing devices. Additionally, the external data sourceinterface component 104, device interface component 106, and dataprocessing component 108 may be implemented in a single computing deviceor across multiple computing devices. Likewise, although the contentmanagement data store 110 is illustrated as local to the contentmanagement system 102, the data store 110 can correspond to adistributed data store and/or network based data store. One skilled inthe relevant art will also appreciate that the content management system102 may include any one of a number of additional hardware and softwarecomponents that would be utilized in the illustrative computerizednetwork environment to carry out the illustrative functions of thecontent management system 102 and/or any of the individually identifiedcomponents.

With continued reference to FIG. 1, the content management environment100 can include any number of computing devices 122 for presentingcontent to a user. The computing devices 122 can also collect andtransmit synchronization information associated with the presentation ofcontent. In an illustrative embodiment, the computing devices 122 caninclude various hardware or software components, or both, for obtainingand presenting digital content to a user, including, but not limited to,browser software applications, image viewing software applications,electronic publication viewing software applications, media playingsoftware applications, and the like. The computing devices 122 cancorrespond to a wide variety of devices or components that are capableof initiating, receiving or facilitating communications over acommunication network including, but not limited to, personal computingdevices, electronic book readers, hand held computing devices,integrated components for inclusion in computing devices, consumerelectronics, appliances, electronic devices for inclusion in vehicles ormachinery, mobile telephones, modems, personal digital assistants,laptop computers, gaming devices, and the like. In an illustrativeembodiment, the computing devices 122 include a wide variety of softwareand hardware components for establishing communications over one or morecommunication networks, including wireless communication network 114 ora wired communication network 118. Illustrative components of acomputing device 122 will be described in detail with regard to FIG. 2.

As illustrated in FIG. 1, a specific subset of computing devices 122correspond to wireless computing devices 112 that are capable ofinitiating, receiving or facilitating communications via a wirelesscommunication network 114. The wireless computing devices 112 cancorrespond to any of the above identified devices associated with thecomputing devices 122. Accordingly, although computing devices 122 areillustrated as a separate component from the wireless devices 112, oneskilled in the relevant art will appreciate that computing devices 122will generally encompass all wired devices and wireless devices.Accordingly, wireless devices 112 are only illustrated in FIG. 1 ashaving the additional functionality of communication via a non-wirelesscommunication network.

In an illustrative embodiment, the content management environment 100can include a number of additional components, systems and/or subsystemsfor facilitating communications with the wireless devices 112 and/or thecontent management system 102. The additional components can include oneor more mobile switching centers 116 for establishing communicationswith the wireless devices 112 via the wireless communication network114, such as a cellular radio access network, a wireless network basedon the family of IEEE 802.11 technical standards (“WiFi”), a wirelessnetwork based on IEEE 802.16 standards (“WiMax”), and other wirelessnetworks. The operation of mobile communication networks, such aswireless communication network 114 are well known and will not bedescribed in detail. As illustrated in FIG. 1, the mobile switchingcenter 116 includes interfaces for establishing various communicationsvia a communication network 118, such as the Internet, intranets,private networks and point-to-point networks, generally referred to asthe “network.” Although the wireless communication network 114 isillustrated as a single communication network, one skilled in therelevant art will appreciate that the communication network can be madeup of any number of public or private communication networks and/ornetwork connections.

The content management environment 100 can further include one or morenetwork data stores 120 for providing external information to thecomputing devices 122, content management system 102 and a combinationthereof. The external information can correspond to content,synchronization information, and/or externally referenced information.For example, a network data store 120 may be utilized to maintain anddistribute content for presentation to the computing devices 122. Inanother example, a network data store 120 may be utilized to maintainand distribute synchronization information. In still a further example,a network data store 120 may be used to provide user informationregarding devices associated with a user or user account, specificdevice configuration information, and/or user profile information.

With reference now to FIG. 2, illustrative components of a computingdevice 122 for collecting synchronization information and transmittingthe collected synchronization information based on determination of asynchronization event will be described. The computing device 122 mayinclude one or more processing units 202, such as one or more CPUs. Thecomputing device 122 may also include system memory 204, which maycorrespond to any combination of volatile and/or non-volatile storagemechanisms. The system memory 204 may store information that provides anoperating system component 206, various program modules 208, programdata 210, and/or other components. The computing device 122 performsfunctions by using the processing unit(s) 202 to execute instructionsprovided by the system memory 204. The computing device 122 may alsoinclude one or more input devices 212 (keyboard, mouse device,specialized selection keys, etc.) and one or more output devices 214(displays, printers, audio output mechanisms, etc.). Illustrativeinterfaces generated by a computing device 122, such as a wirelesscomputing device 112, will be described below with regard to FIGS.10-13.

With continued reference to FIG. 2, the computing device 122 may alsoinclude one or more types of removable storage 216 and one or more typesof non-removable storage 218. Still further, the computing device 122can include communication components 220 for facilitating communicationvia wired and wireless communication networks, such as the wirelesscommunication network 114 and network 118 (FIG. 1). As will be explainedin greater detail below, the computing device 122 can also include asynchronization processing component 222 for collecting synchronizationinformation related to the presentation of content on the computingdevice 122. The synchronization processing component 222 may further beoperative to determine synchronization events that result in thetransmission of the collected synchronization information to the contentmanagement system 102. The synchronization events may be based onmonitoring wireless device performance, obtaining inputs from usersand/or obtaining information from external data sources.

In an illustrative embodiment, the computing device 122 may furtherinclude a content management component 224 for obtaining synchronizationinformation from a device, or devices, serving as originating devicesupon detection of a synchronization event. The content managementcomponent 224 can also determine one or more devices to serve asreceiving devices and cause the transmission of at least a subset of thesynchronization information to the receiving devices. Illustratively,the content management component 224 may have equivalent functionalityas described with regard to the content management system 102 (FIG. 1).Alternatively, the content management component 224 may have morelimited functionality and/or specialized functionality, such asfunctionality to implement peer-to-peer distribution. The computingdevice 122 may also be associated with a data store 226 for storingsynchronization collection configuration information, synchronizationevent configuration information, configuration information regardingincorporation of received synchronization information, collectedsynchronization information, or various combinations of the above. Theabove enumerated list of components is representative and is notexhaustive of the types of functions performed, or componentsimplemented, by the computing device 122. One skilled in the relevantart will appreciate that additional or alternative components may alsobe included in the computing device 122 to carry out other intendedfunctions such as for an electronic book reader or a mobile telephone.

With reference to FIGS. 3A-3C, the interaction between the variouscomponents of the content management environment 100 (FIG. 1) will bedescribed. With reference to FIG. 3A, in one embodiment corresponding toa “pull” model, a computing device 122A functions as an originatingdevice and collects synchronization information related to thepresentation of content to a user, or set of users. As previouslydescribed, the synchronization information is defined according to oneor more reference points, or tracking points, associated with thepresentation of the content. For example, the synchronizationinformation can correspond to information associated with the currentstate of the presentation of the content to the user (e.g., last pageread), additional information provided by the user or an external datasource (e.g., annotations, bookmarks, highlights, comments, tags,excerpts, etc.), or a combination thereof.

In one embodiment, the originating computing device 122A continues tocollect the synchronization information until a synchronization event isdetermined. Illustratively, the synchronization processing component 222(FIG. 2) is configured with criteria utilized to determine particularsynchronization events. As previously discussed, the criteria utilizedto determine synchronization events can correspond to receipt ofuser-initiated commands, computing device performance metrics (e.g.,power levels, communication levels, motion sensors, timers, detection ofinput/output devices, etc.), receipt of externally provided instructionsor information, and the like. Each originating computing device 122A, orclass of originating computing devices, may have differentconfigurations for determining synchronization events based oncharacteristics of the device (e.g., power management for a wirelesscomputing device 112) or custom configurations provided by a user oradministrator.

Upon detection of the synchronization event, the originating computingdevice 122A transmits the collected synchronization information to thedevice interface component 106 of the content management system 102 viathe communication network 118. The content management system 102processes the synchronization information from the originating computingdevice 122A and identifies a set of one or more devices that shouldreceive the synchronization information, serving as the receivingdevices for the synchronization information. Illustratively, the contentmanagement system 102 identifies which devices have been registered, orotherwise associated with, a common user or common user account.Additionally, the content management system 102 optionally determineswhether the receiving devices have access to a representation of thecontent (either locally stored or accessible via the communicationnetwork 118). Still further, the content management system 102 mayutilize user specified or administrator specified configurationinformation in determining, or otherwise adjusting, the set of receivingdevices. In accordance with a “pull” model, the content managementsystem 102 transmits a notification to at least one receiving device(e.g., computing device 122B), indicating that synchronizationinformation is available.

With reference now to FIG. 3B, the receiving computing device 122B,obtains the synchronization notification and transmits a request for thesynchronization information to the content management system 102. Therequest can include additional information related to the configuration,capabilities, or functionality of the receiving computing device 122B.The additional information will be used by the content management system102 to determine a subset of the synchronization information to bedelivered to the receiving computing device 122B. Additionally, therequest from the receiving computing device 122B can be transmittedbased on the availability of the communication network 118, inaccordance with other data transmission criteria, such as costmitigation, power management, quality of service, and the like, alone orin combination.

The content management system 102 receives the request from thereceiving computing device 122B and determines how much of thesynchronization information (including at least a subset of thesynchronization information) should be transmitted to the receivingcomputing device. Thereafter, the content management system 102 eithertransmits or causes the transmission of the synchronization informationto the receiving computing device 122B. In turn, the receiving computingdevice 122B obtains the synchronization information (or a subsetthereof) and incorporates the received synchronization information. Thereceiving computing device's 122B incorporation of the receivedsynchronization information can include the incorporation, update orstorage of progress information, any additional information, or acombination thereof Additionally, the update of the digital content caninclude receipt of referenced information (such as referenced via auniform resource identifier (URI)). For example, in the event that thereceiving computing device 122B does not have a full copy of thecontent, the incorporation of the synchronization information caninclude the receiving computing device 122B obtaining relevant portionsof the content (e.g., content corresponding to the next chapter of apublication). Still further, the incorporation of the synchronizationinformation by the receiving computing device 122B can includeperforming conflict resolution of synchronization information receivedfrom multiple originating devices or with regard to the contentpreviously maintained at the receiving computing device 122B.

With reference now to FIG. 3C, in another embodiment corresponding to a“push” model, an originating computing device 122C collectssynchronization information related to the presentation of content to auser or set of users. The originating computing device 122C continues tocollect the synchronization information until a synchronization event isdetermined. Upon determination of the synchronization event, theoriginating computing device 122C transmits the collectedsynchronization information to the device interface component 106 of thecontent management system 102 via the communication network 118. Aspreviously described, the content management system 102 processes thesynchronization information from the originating computing device 122Cand identifies a set of one or more devices that should receive thesynchronization information. As illustrated in FIG. 3C, receivingcomputing device 122D serves as the receiving devices for thesynchronization information.

With continued reference to FIG. 3C, the content management system 102then determines that the receiving computing device 122D should receiveat least a subset of the synchronization information. Thereafter, thecontent management system 102 either transmits or causes thetransmission of the synchronization information to a receiving computingdevice 122D. In turn, the receiving computing device 122D obtains thesynchronization information (or subset thereof) and incorporates thereceived synchronization information. As previously described, theincorporation of the received synchronization information by thereceiving computing device 122D can include the incorporation, update orstorage of progress information or any additional information.Additionally, the update of the digital content can include receipt ofreferenced information. Still further, the receiving computing device's122D incorporation of the synchronization information can includeperforming conflict resolution of synchronization information receivedfrom multiple originating devices or with regard to the contentpreviously maintained at the receiving computing device 122D.

With reference to FIGS. 4A and 4B, the interaction between the variouscomponents of the content management environment 100 (FIG. 1)corresponding to a peer-to-peer distribution model will be described.With reference to FIG. 4A, similar to the interaction described withregard to FIG. 3, an originating computing device 122E collectssynchronization information related to the presentation of content to auser or set of users. The originating computing device 122E continues tocollect the synchronization information until a synchronization event isdetermined. Upon detection of the synchronization event, the originatingcomputing device 122E transmits the collected synchronizationinformation to the device interface component 106 of the contentmanagement system 102 via the communication network 118.

The content management system 102 processes the synchronizationinformation from the originating computing device 122E and identifies aset of one or more devices that should receive the synchronizationinformation. As illustrated in FIG. 4A, receiving computing device 122Fserves as the receiving devices for the synchronization information. Aspreviously described in FIG. 3B, the content management system 102transmits a notification to at least one receiving computing device 122Findicating that synchronization information is available.

With reference now to FIG. 4B, the receiving computing device 122F,obtains the synchronization notification and transmits a request for thesynchronization information to the content management system 102. Aspreviously described, the request can include additional informationrelated to the configuration, capabilities, or functionality of thereceiving computing device 122F that is used by the content managementsystem 102 to determine that the receiving computing device 122F shouldreceive at least a subset of the synchronization information.Additionally, as previously described, the request from the receivingcomputing device 122F can be transmitted based on the availability ofthe communication network 118 or in accordance with other datatransmission criteria, such as cost mitigation, power management,quality of service, and the like. The content management system 102receives the request from the receiving computing device 122F andidentifies the synchronization information that will be transmitted tothe receiving computing device.

With continued reference to FIG. 4B, in accordance with a peerdistribution model, the content management system 102 transmits a peersynchronization request to a peer computing device 122G. The peersynchronization request includes instructions requesting that the peercomputing device 122G serve as a source of synchronization informationto other devices in the content management environment 100. The peersynchronization request can include a copy of the synchronizationinformation (or subset thereof) if the peer computing device does notalready have the synchronization information. Although FIG. 4Billustrates the peer synchronization request being transmitted to asingle, separate computing device (e.g., peer computing device 122G),the content management system 102 may transmit multiple peersynchronization requests, including a peer synchronization request tothe originating computing device 122E. Accordingly, in one embodiment, acomputing device may function as both an originating computing device122E for collecting the synchronization information and a peer computingdevice for transmitting the synchronization information to receivingcomputing device(s) 122F. Upon processing the peer synchronizationrequest, the peer computing device 122G transmits the synchronizationinformation to the receiving computing device 122F. As described above,the receiving computing device 122F obtains the synchronizationinformation (or subset thereof) and incorporates the receivedsynchronization information.

With reference to FIG. 5, an embodiment illustrating the internalprocessing of a synchronization event by an originating computing device122H will be described. Similar to the interaction described with regardto FIGS. 3 and 4, an originating computing device 122H collectssynchronization information related to the presentation of digitalcontent to a user or set of users. The originating computing device 122Hcontinues to collect the synchronization information until asynchronization event is determined. With reference to an illustrativeexample, the synchronization processing component 222 (FIG. 2) maydetect that an output device 214, such as headphones, have been enabledon the originating computing device 122H. Accordingly, thesynchronization processing component 222 may be configured to determinethat the enablement of the output device 214 is a synchronization eventbecause it may be indicative of a desire by the user to access thecontent via an audible representation of content as opposed to, or inaddition to, a corresponding visual representation.

Upon detection of the synchronization event, the originating computingdevice 122H does not transmit the synchronization information to thecontent management system 102. Instead, the content management component224 associated with the originating computing device 122H identifies oneor more representations of the content on the originating computingdevice 122H, or otherwise accessible by the originating computing device122H. Thereafter, the originating computing device 122H incorporates thereceived synchronization information to each of the identifiedrepresentations of the content on the originating computing device 122H.With reference to the previous example, incorporation of thesynchronization information may relate to the automatic initiation of asoftware application on the originating computing device 122H forpresenting the audible representation of the content such that thecontent is cued according to the progress information included in thesynchronization information. In such an embodiment, the contentmanagement component 224 may be required to translate, or otherwiseprocess, the synchronization information so that it can be incorporatedinto different types of formats.

With reference to FIG. 6, the interaction between the various componentsof the content management environment 100 (FIG. 1) corresponding toanother peer-to-peer distribution model will be described. Similar tothe interaction described with regard to FIGS. 3-5, an originatingcomputing device 122J collects synchronization information related tothe presentation of digital content to a user or set of users. Theoriginating computing device 122J continues to collect thesynchronization information until a synchronization event is determined.

Similar to the interaction described with regard to FIG. 5, upondetection of the synchronization event, the originating computing device122J does not transmit the synchronization information to a contentmanagement system 102. However, as illustrated in FIG. 6, the contentmanagement component 224 (FIG. 2) associated with the originatingcomputing device 122J identifies a set of one or more receivingcomputing devices that should receive the synchronization information.As previously described, the request can include additional informationrelated to the configuration, capabilities, or functionality of thereceiving computing device 122K that will be used by the contentmanagement system 102 to determine that the receiving computing device122K should receive at least a subset of the synchronizationinformation. Thereafter, the originating computing device 122J transmitsthe synchronization information to the receiving computing device 122K.

As described above, the receiving computing device 122K obtains thesynchronization information (or subset thereof) and incorporates thereceived synchronization information. One skilled in the relevant artwill appreciate that the peer distribution model illustrated in FIG. 6could be repeated such that each receiving computing device (e.g.,receiving computing device 122K) would become an originating computingdevice for transmitting the synchronization information to other devicesknown to the computing device. In this alternative embodiment, eachcontent management component 224 (FIG. 2) would not be required tomaintain an exhaustive list of all potential receiving computingdevices. Rather, the synchronization information would be propagatedthrough multiple peer-to-peer transmissions.

With reference now to FIG. 7, a flow diagram illustrative of a contentsynchronization information generation routine 700 implemented by anoriginating computing device 122 for transmitting synchronizationinformation based on a determination of a synchronization event will bedescribed. At block 702, the synchronization processing component 222(FIG. 2) of the originating computing device 122 collects contentsynchronization information associated with the presentation of contentto a user. As previously described, the synchronization information caninclude information tracking the current state of the presentation ofthe content to the user (e.g., last page, paragraph, or word presentedto the user), additional information provided by the user or an externaldata source (e.g., annotations, bookmarks, highlights, comments, tags,excerpts, etc.), or a combination thereof. For example, the additionalinformation can include portions of previously presented contentselected by a user, such as via cut and paste functionality. In anotherexample, the additional information can include geocoding information,such as global position system (GPS) information, that can be obtainedfrom an appropriate sensor or component and attributed to a referencepoint within the representation of the content. As also described above,the synchronization information is illustratively defined according toreference points, or tracking points, in the content. Illustratively,the reference points or tracking points may vary according to the typeand format of content, including but not limited to, chapter number,section number, page number, paragraph number, word groupings (e.g.,blocks of words), word number/word count, time of play, timestamps,track number, and the like. Still further, the reference point ortracking point information may be hierarchically organized to facilitatemulti-level sorting. For example, each word in a representation ofcontent may be labeled with a word count within the content, as well asa chapter count, sentence count, etc.

In an illustrative embodiment, the reference point informationassociated with the presentation of content may be represented by aprogress information data structure. As applicable, the progressinformation data structure may include multiple fields for specifyingaspects of progress information. The fields can include a previousposition field, a current position field, a timestamp field, and aplayed-through indicator field, and other bookmark field (although more,or less, fields may be used, if desired). The previous position fieldmay include reference information which defines the point from which thecurrent position field is being updated. The current position field cancorrespond to multi-media content for indicating a current playbackposition within the multi-media content. The current playback positionmay correspond to digital representation of units of time (seconds) froma starting point. For example, this field may specify a value such as360 seconds, in which case the playback device increments the playbackpointer 6 minutes from the starting point of the content as the currentplayback position. The timestamp field indicates a time at which theprogress information was collected, stored or otherwise processed. Theplayed-through indicator field indicates whether the end of the contenthas been presented to a user, such as a flag. The other bookmark fieldmay include data relating one or more other bookmarks placed or updatedin the content by the user during the consumption session.

At block 704, the synchronization processing component 222 processes thesynchronization information. In one embodiment, the synchronizationprocessing component 222 can process the synchronization information byapplying filtering, spell/grammar check, and any other algorithms.Additionally, the synchronization processing component 222 canincorporate additional referenced materials, such as by accessing a URI,or incorporating information previously stored on the originatingcomputing device 122. Still further, the synchronization processingcomponent 222 can translate or otherwise process the collectedsynchronization information. For example, if the collectedsynchronization information corresponds to information related to thepresentation of a specific representation of content (e.g., page numberas viewed on a particular originating device), the synchronizationprocessing component 222 may translate the synchronization informationinto a generic format applicable to different representations of thecontent or into a format specific for a different representation of thecontent (e.g., track information for a video or timestamp informationfor streaming content).

At decision block 706, a test is conducted to determine whether asynchronization event has occurred. As previously described, thesynchronization processing component 222 is configured with criteriautilized to determine particular synchronization events. As previouslydiscussed, the criteria utilized to determine the occurrence of asynchronization event can correspond to the processing of userinteraction information, computing device performance metrics,externally provided instructions or information, and the like. By way ofnon-limiting examples, the determination of a synchronization event cancorrespond to a likelihood that synchronization information isavailable, the availability of a network connection to transmit data,the anticipated unavailability of the originating device in the future,and various combinations thereof. Additionally, examples of userinteraction include, but are not limited to, selection of a power offswitch or power off function, disabling a communication component, suchas a wireless modem, etc., selecting a limited communication mode on thewireless device, docking a portable computing device to a computingdevice or power supply, and the like. One skilled in the relevant artwill appreciate that the user interaction events can correspond tophysical interactions with the originating computing device 122, voiceor other interactive commands, remote interactions, and the like.

The computing device performance metric information can include variousattributes of the originating computing device 122 including batterypower information, battery power consumption rates, wireless signalstrength, overall device health information, device or ambienttemperature values, and the like. The performance metric information canalso include information related to the status of various input oroutput devices or information regarding a change in status of input oroutput devices. For example, performance metric information can includeinformation indicative of the connection of a portable device with aconsumer device in a vehicle (e.g., via a Bluetooth wireless connectionor hardwire connection). Similarly, the performance metric informationcan include information related to the instantiation of one or moresoftware applications on the originating device. For example,performance metric information can include an identification of anysoftware application having functionality to present content to a user.In an illustrative embodiment, the performance metric information may begenerated by hardware components (e.g., sensors) or software componentson the originating computing device 122. Additionally, the performancemetric information may be obtained by the originating computing device122 from external resources, such as attached hardware components,remote monitoring components/services or network data sources 120. Forexample, performance metric information can correspond to information(such as latitude and longitude information or other geographiccoordinate information) from a global positioning system (“GPS”) orcellular positioning system (e.g., triangulation).

Illustratively, each device, or class of devices, may have differentconfigurations for determining synchronization events based oncharacteristics of the device (e.g., power management for wirelessdevices) or custom configurations provided by a user or administrator.For example, a wireless computing device 112 may be configured topreserve battery consumption by limiting the number of synchronizationevents that can be determined.

If a synchronization event is determined at decision block 706, theoriginating computing device 122 transmits the digital contentsynchronization information at block 708. In one illustrative embodiment(as discussed above with regard to FIGS. 3 and 4), the computing device122 transmits the collected synchronization information to the contentmanagement system 102 (FIG. 1) for distribution to receiving devices. Inanother embodiment (as discussed above with regard to FIG. 5), theoriginating computing device can also apply the synchronizationinformation internally to other representations of the content storedon, or accessible to, the originating computing device 122. Theoriginating computing device can apply the synchronization informationinternally in addition to transmitting the synchronization informationto the content management system 102 or in lieu of transmitting thesynchronization information. In a further embodiment (as discussed abovewith regard to FIG. 6), the originating computing device 122, via thecontent management component 224 (FIG. 2), transmits the synchronizationinformation directly to the receiving devices in a peer distributionmodel. Once the synchronization information has been transmitted atblock 708 or if no synchronization event is detected, the routine 700returns to block 702. Thus, the originating computing devices 122 cancontinuously collect and transmit synchronization information asappropriate.

With reference now to FIG. 8, a flow diagram illustrative of a contentsynchronization information processing routine 800 implemented by thecontent management system 102 (FIG. 1) for processing and transmittingsynchronization information will be described. Although routine 800 willbe described with regard to implementation by the content managementsystem 102, one skilled in the relevant art will appreciate that atleast some portion of routine 800 may be implemented by the contentmanagement component 224 as appropriate. At block 802, the deviceinterface component 106 of the content management system 102 obtainssynchronization information from an originating computing device 122. Atblock 804, the data processing component 108 processes thesynchronization information and determines one or more computing devicesto receive the synchronization information at block 806. Illustratively,the data processing component 108 processes the synchronizationinformation to determine user or account identification information,identify any specific instructions related to the transmission of thesynchronization information (e.g., an identification of specificcomputing device to receive the synchronization information), or anycombination of the above. The data processing component 108 can alsotranslate or otherwise process the collected synchronization informationto a generic format or a format specific to a representation of thecontent.

In an illustrative embodiment, the data processing component 108 canmodify the progress information included in the synchronizationinformation. For example, the data processing component 108 can adjustthe progress information backwards such that a portion of previouslypresented content is replayed to remind or refresh the user's memory. Insome embodiments, the portion of content replayed may be a function ofthe time between replay intervals. For example, if a user consumescontent on the originating computing device 122, and shortly thereafterresumes consumption with a receiving computing device 122 (e.g., tenminutes later), the replay period may be relatively short (e.g., tenseconds of audio content, one page of textual content, etc.). If theuser resumes replay two days later, the replay period may be somewhatlonger (e.g., thirty seconds of audio content, one chapter of textualcontent, etc.).

As previously described, to determine which computing devices will bereceiving computing devices, the data processing component 108determines whether the receiving device has been registered, orotherwise associated with, a common user or common user account. In anillustrative embodiment, a user, or system administrator, candynamically update the list of registered receiving devices that areeligible to receive synchronization information. For example, a user canbe presented with a screen interface that allows the user to selectwhich receiving devices are eligible to receive synchronizationinformation or to specify subsets of synchronization information to bereceived. Further, in an alternative embodiment, the content managementsystem 102 can facilitate the temporary association of one or morereceiving devices. For example, a user may rent a car and wish to use itas a receiving device during the time period of the car rental. In thiscase, the user may temporarily add this receiving device by registeringit with the content management system 102. Accordingly, uponregistration and initialization, the user may consume content.Additionally, to the extent the content is not available in thetemporary receiving devices, portions of the content may be provided tothe temporary receiving device. After the user is finished with thatdevice (e.g., returns the rental car), the device may be unregistered,and the user's content, bookmark and playback information is consultedfor any updates or usage data and statistics (discussed in more detailbelow) and may be subsequently deleted from the playback device.Illustratively, the temporary device may be configured to determine thatthe unregistration of the device corresponds to a synchronization event.

Additionally, the data processing component 108 optionally determineswhether the receiving devices have access to a representation of thecontent (either locally stored or accessible as streamed content via thecommunication network 118). For example, the data processing component108 can maintain a table of content known to be stored at each potentialreceiving device. Alternatively, the data processing component 108 canpoll one or more devices to attempt to match content titles,identifiers, stock keeping units, product identifiers, etc. Stillfurther, the data processing component 108 can further incorporate anyspecific processing instructions that include or exclude one or moredevices. For example, a user may have previously configured certaindevices associated with the account to not receive synchronizationinformation, that certain types of content should not be synchronized(e.g., content corresponding to periodicals), or combinations thereof.

In accordance with a “pull” model, at block 808, the device interfacecomponent 106 transmits a notification to one or more of the receivingdevices previously identified at block 806. Illustratively, thesynchronization notification transmitted to the computing devices 122can include an identification of the type of synchronization content(e.g., progress or additional information) that is available to thereceiving computing device(s). Thereafter, at block 810, the deviceinterface component 106 obtains requests from receiving computingdevices 122 for the synchronization information that is responsive tothe previously transmitted notification. One skilled in the relevant artwill appreciate that for a “push” model (as described above with regardto FIG. 3C), routine 800 may be implemented with the omission of blocks808 and 810.

At block 812, the content management system 102 transmits or causes thetransmission of the synchronization information to the requestingreceiving computing devices 122. Prior to the transmission, the dataprocessing component 108 can determine whether it is appropriate totransmit only a subset of the synchronization information to specificcomputing devices 122 based on characteristics of the synchronizationinformation/content or characteristics of the computing device. In oneaspect, the synchronization information can include content that cannotbe processed by a receiving computing device (e.g., based onversions/availability of software applications, availablememory/resources, etc.) or expressly rejected by the receiving computingdevice. In another aspect, the format/version of the content may be suchthat the synchronization information may not be applicable. For example,synchronization information corresponding to digital annotations orhighlights may not be transmitted to a consumer electronics basedreceiving computing device 122 in which the digital content is presentedas streamed audible content (unless the device includes text-to-speechcapabilities). Likewise, a receiving device having an earlier version ofa publication may still receive synchronization information associatedwith a later version of the publication, but only for those portions incommon.

In still a further embodiment, the data processing component 108 canprocess the synchronization information to minimize or reduceconflicting or incompatible synchronization information. In one aspect,the data processing component 108 may simply choose the synchronizationinformation that is associated with the latest time of collection. Inanother aspect, the data processing component 108 may select thesynchronization information that indicates the lesser amount of contentconsumed (so that although the user may have to again consume certaincontent, little or none would be missed). A third approach may involvethe data processing component 108 verifying the synchronizationinformation to determine whether the collected synchronizationinformation is most accurate. As will be described in greater detailbelow, a fourth approach includes sending an error message identifyingeach playback device, the content selection affected, and its associatedposition information, and asking the user to select the most appropriateone. At block 814, the routine 800 terminates.

With reference now to FIG. 9, a flow diagram illustrative of a contentsynchronization information processing routine 900 implemented by areceiving computing device 122 for updating content based on receivedsynchronization information will be described. At block 902, thereceiving computing device 122 obtains a synchronization informationnotification from the content management system 102. If thesynchronization information is desired, at block 904, a request forsynchronization information is transmitted to the content managementsystem 102. Illustratively, the receiving computing device 122 may bepreconfigured to automatically process notifications in accordance withcriteria specified by a user or administrator. For example, thereceiving computing device 122 can process notifications by determiningwhether a representation of the corresponding content is stored, orotherwise available, to the receiving computing device. If so, thereceiving computing device 122 can request the synchronizationinformation. Additionally, the receiving computing device 122 can alsogenerate a screen interface prompting a user regarding a decisionwhether to request specific synchronization information. One skilled inthe relevant art will appreciate that for a “push” model (as describedabove with regard to FIG. 3C), routine 900 may be implemented with theomission of blocks 902 and 904.

Thereafter, at block 906, the receiving computing device 122 obtainssynchronization information from the content management system 102. Atblock 908, the receiving computing device processes the synchronizationinformation to incorporate the synchronization information. In oneaspect, if the synchronization information has not been previouslyfiltered by the content management system 102 (such as if theoriginating computing device is internally processing the collectedsynchronization information), the receiving computing device 122 canfilter portions of the synchronization information that are notapplicable to the specific representation of the content accessible tothe receiving computing device 122 or that have been specificallyconfigured to be excluded, or otherwise ignored, by the receivingcomputing device 122. For example, the receiving computing device 122may be configured to ignore synchronization information obtained forcontent not accessible by the receiving computing device. The receivingcomputing device 122 can utilize identification information included inthe synchronization information, such as SKU, product identifiers,version identifiers, to determine whether the synchronizationinformation should be incorporated.

As previously described, the incorporation of the receivedsynchronization information can include the incorporation, update orstorage of progress information or additional information. Additionally,the update of the digital content can include receipt of referencedinformation. Still further, the incorporation of the synchronizationinformation can include performing conflict resolution ofsynchronization information received from multiple originating devicesor with regard to the content previously maintained at the receivingcomputing device 122. In one embodiment, the receiving computing devicemay generate a screen interface notifying a user of the receipt of thesynchronization information. Such a screen interface may provide theuser the ability to control the incorporation of the receivedsynchronization information or to resolve conflicting or inconsistentsynchronization information. In another embodiment, the receivingcomputing device 122 may be configured, such as by a user or systemadministrator, with information that enables the receiving device toautomatically perform the synchronization information processing(including conflict resolution processing) without requiring additionaluser interaction. At block 910, the routine 900 terminates.

FIG. 10 is an illustrative interface 1000 generated on a computingdevice 122, such as a wireless device 112, for configuring thetransmittal of synchronization information based on a determination of asynchronization event. The interface 1000 includes a first portion 1002corresponding to the presentation of content, such as via a display. Aspreviously described, in one embodiment, upon detection of asynchronization event, the wireless device 112 may prompt a user toconfirm a desire to synchronize content or to configure futuresynchronization events. As illustrated in FIG. 10, the interface 1000includes a second portion 1004 that serves as a notification indicativeof the detection of a synchronization event. Additionally, the secondportion includes a control 1006 for obtaining a confirmation of a desireto synchronize content. Still further, the second portion 1004 includesa configuration component 1008 for obtaining user input regarding themodification of the criteria utilized to determine a synchronizationevent. Although FIG. 10 has been illustrated with regard to acombination of confirmation and configuration functionality, one skilledin the relevant art will appreciate any number of separate or combinedinterfaces can be used to collect the confirmation information orconfiguration information. Additionally, although interface 1000 isillustrated with regard to a display screen of a wireless device 112,the interface 1000 may be generated by any type of computing device 122and modified in accordance with resources associated with suchalternative computing devices.

FIGS. 11A and 11B are illustrative interfaces 1100 and 1150 generated ona computing device 122, such as a wireless device 112, for configuringthe updating of digital content based on receipt of synchronizationinformation. With reference to FIG. 11A, the interface 1100 includes afirst portion 1102 corresponding to the presentation of content, such asvia a display. In this illustrative example, the content is initiallypresented at the first reference point (e.g., the first page of thepublication). As illustrated in FIG. 11A, the interface 1100 includes asecond portion 1104 that serves as a notification indicative of thereceipt of a synchronization event from a content management system 102or peer computing device 122. The second portion 1104 includes a control1106 for obtaining a confirmation of a desire to synchronize content onthe wireless device with the received synchronization information. Stillfurther, the second portion 1104 includes configuration components1108-1114 for obtaining user input regarding future synchronizationconfigurations. Specifically, the second portion 1104 includes acomponent 1108 for toggling whether to exclude one or more associateddevices from receiving synchronization information, as well as a listingof the specific associated devices 1110-1114 for collecting specificsynchronization instructions. The specific synchronization instructionsmay be transmitted by the wireless device 112 with the next transmittalof synchronization information. Although FIG. 11A has been illustratedwith a combination of confirmation options regarding the updating ofcontent and additional configuration functionality, one skilled in therelevant art will appreciate that any number of separate or combinedinterfaces can be used to collect the confirmation information orconfiguration information. Additionally, although interface 1100 isillustrated with regard to a display screen of a wireless device 112,the interface 1100 may be generated by any type of computing device 122and modified in accordance with resources associated with suchalternative computing devices.

With reference now to FIG. 11B, the interface 1150 includes a portion1152 corresponding to the presentation of a menu or other interfacespecifically for configuring the sharing of synchronization informationbetween devices. Portion 1152 includes three controls 1154, 1156, 1158for obtaining user input as to whether associated devices should receivesynchronization information. The identification of the devices may bebased on user profile information or the identification of specificdevices by the user. As illustrated in FIG. 11B, portion 1152 alsoincludes two additional controls 1160, 1162 to obtain user input as towhether a selected device should receive synchronization information forselected types of content. Accordingly, portion 1152 can facilitate theselection as to the sharing of synchronization information for specifictypes of content. Moreover, although not illustrated in FIG. 11B, aninterface could include additional controls to facilitate theconfiguration of the sharing of synchronization information related tothe selection of specific content (e.g., do not share anysynchronization information related to “Moby Dick”). Although interface1150 is illustrated with regard to a display screen of a wireless device112, the interface 1150 may be generated by any type of computing device122 and modified in accordance with resources associated with suchalternative computing devices.

With reference to FIGS. 12A and 12B, illustrative displays 1200 and 1250corresponding to a receiving computing device, such as a consumerelectronics based computing device, will be described. With reference toFIG. 12A, an illustrative display 1200 corresponding to a consumerdevice for configuring the incorporation of synchronization informationbased on receipt of synchronization information will be described. Inthis illustrative embodiment, it is assumed that the synchronizationinformation transmitted by the originating device corresponding to thepresentation of a digital publication while the presentation on thereceiving device corresponds to audible content, such as an audio book,which has been loaded in a device for use while driving. Accordingly,the synchronization information has been processed, filtered,translated, or otherwise manipulated in accordance with thecharacteristics of the device or the audio content.

The display 1200 includes a first portion 1202 for notifying the userthat synchronization information has been received. In the illustrativeexample, the synchronization information has been received from ane-book reader via a wireless or wired connection to the consumer device.The display 1200 further includes controls 1204 for manipulating theplayback of the digital content. Additionally, the display 1200 includesa second portion 1206 for indicating the current measurement of progressof the presentation of the content on the device. Illustratively, thedevice may not have the necessary functionality or capabilities todisplay the additional information, such as highlights or bookmarks.Accordingly, only progress information in the synchronizationinformation is utilized by this device.

With reference now to FIG. 12B, an illustrative display 1250corresponding to a consumer electronics originating computing device forconfiguring the transmittal of synchronization information based on adetermination of synchronization events will now be described. In thisillustrative embodiment, it is assumed that the originating computingdevice presents an audible representation of content, such as an audiobook, which has been loaded in a device for use while driving. In thisexample, the consumer electronics based originating computing devicewill transmit the collected synchronization information to otherdevice(s) having a representation of the content (such as via a wirelesscommunication channel). The display 1250 includes a first portion 1252for notifying the user of the sharing of synchronization informationbased on the detection of an output device 214 (e.g., the connection ofheadphones to a device has been configured to correspond to asynchronization event). The display 1250 further includes controls 1256for manipulating the playback of the content.

In this illustrative example, progress regarding the presentation ofcontent on the device is measured in discrete, predefined units.Accordingly, the display 1250 includes a first indicator 1258corresponding to a previous reference point from which progress has beenpreviously measured and an indicator 1260 regarding the current, closestreference point. For purposes of the illustrative example, the display1250 also includes two additional indicators 1262 and 1264 identifyingpotential future reference points. In this example, a user can utilizethe controls 1256 to adjust the reference points (either forward orbackward) that will be used to indicate the progress. In one aspect, theuser can return to a previous reference point in an effort to repeat thepresentation of the content on another device. For example, the user canutilize controls 1256 to cue the presentation of content to suchprevious reference points. In another aspect, the user can forward to afuture reference point to skip portions of the presentation of thecontent on the other device. Similarly, the user can utilize controls1256 to cue the presentation of content to such future reference points.One skilled in the relevant art will appreciate that the presentation ofaudible content can include any number of reference points.

FIGS. 13A and 13B are illustrative screen renderings 1300, 1350generated on a wireless device 112 based on the incorporation ofannotations with the synchronization information associated with contentaccessible by the wireless device. With reference to FIG. 13A, thescreen rendering 1300 corresponding to the presentation of content 1302at a reference point specified in synchronization information receivedby the wireless computing device 112. As illustrated in FIG. 13A, thescreen rendering 1300 includes a specific identifier 1304 indicative ofthe last progress during the last presentation of the content. Theidentifier 1304 includes additional information, such as a time when thesynchronization information was obtained from the originating computingdevice. In an illustrative embodiment in which multiple progress pointsare received, the screen rendering 1300 includes a control 1306 forinstructing the wireless device 112 to proceed to the next annotation,highlight or bookmark.

With reference to FIG. 13B, the screen rendering 1350 corresponds to theincorporation of synchronization information from multiple devices, suchas in a collaborative effort. The screen rendering 1350 relates to thepresentation of content, such as via a display. In this illustrativeexample, the content displayed in the screen rendering 1350 is presentedat a reference point corresponding to the current user of the device anddoes not reflect the progress information related to other users. Thescreen rendering 1350 includes a first identifier 1352 corresponding toadditional information, such as an annotation or highlight, provided byone of the multiple devices. The screen rendering 1350 includes a secondidentifier 1354 corresponding to additional information, such as anannotation or highlight, provided by one of the multiple devices. Asillustrated in FIG. 13B, the additional information may be fullydisplayed on the screen rendering 1350 at 1356 by activating a control,such as hovering a pointing device over identifier 1354. The screenrendering 1350 includes a control 1358 for instructing the wirelessdevice 112 to proceed to the next received annotation or highlight, etc.Providing additional information received from multiple differentdevices provides the ability for groups of users (e.g., a book club orclassroom) to collaborate on the content that is being presented tothem.

While illustrative embodiments have been disclosed and discussed, oneskilled in the relevant art will appreciate that additional oralternative embodiments may be implemented within the spirit and scopeof the present disclosure. Additionally, although many embodiments havebeen indicated as illustrative, one skilled in the relevant art willappreciate that the illustrative embodiments do not need to be combinedor implemented together. As such, some illustrative embodiments do notneed to be utilized or implemented in accordance with the scope ofvariations to the present disclosure.

Conditional language, such as, among others, “can,” “could,” “might,” or“may,” unless specifically stated otherwise, or otherwise understoodwithin the context as used, is generally intended to convey that certainembodiments include, while other embodiments do not include, certainfeatures, elements or steps. Thus, such conditional language is notgenerally intended to imply that features, elements or steps are in anyway required for one or more embodiments or that one or more embodimentsnecessarily include logic for deciding, with or without user input orprompting, whether these features, elements or steps are included or areto be performed in any particular embodiment. Moreover, unlessspecifically stated otherwise, or otherwise understood within thecontext as used, is generally intended to convey utilization of theconjunction “or” in enumerating a list of elements does not limit theselection of only a single element and can include the combination oftwo or more elements.

Any process descriptions, elements, or blocks in the flow diagramsdescribed herein and/or depicted in the attached figures should beunderstood as potentially representing modules, segments, or portions ofcode which include one or more executable instructions for implementingspecific logical functions or steps in the process. Alternateimplementations are included within the scope of the embodimentsdescribed herein in which elements or functions may be deleted, executedout of order from that shown or discussed, including substantiallyconcurrently or in reverse order, depending on the functionalityinvolved, as would be understood by those skilled in the art. It willfurther be appreciated that the data and/or components described abovemay be stored on a computer-readable medium and loaded into memory ofthe computing device using a drive mechanism associated with acomputer-readable medium storing the computer executable components,such as a CD-ROM, DVD-ROM, or network interface. Further, the componentand/or data can be included in a single device or distributed in anymanner. Accordingly, general purpose computing devices may be configuredto implement the processes, algorithms and methodology of the presentdisclosure with the processing and/or execution of the various dataand/or components described above. Alternatively, some or all of themethods described herein may alternatively be embodied in specializedcomputer hardware. In addition, the components referred to herein may beimplemented in hardware, software, firmware or a combination thereof.

It should be emphasized that many variations and modifications may bemade to the above-described embodiments, the elements of which are to beunderstood as being among other acceptable examples. All suchmodifications and variations are intended to be included herein withinthe scope of this disclosure and protected by the following claims.

What is claimed is:
 1. A system for synchronizing progress informationassociated with the presentation of content, the system comprising: acomputing system comprising a processor and a memory for executingcomputer-executable instructions, the computer-executable instructionsimplementing an interface component that is operative to: obtainprogress information corresponding to presentation of the content on anoriginating device, the progress information defined in accordance witha reference point associated with the digital content; and a computingsystem comprising a processor and a memory for executingcomputer-executable instructions, the computer-executable instructionsimplementing a data processing component that is operative to: identifyat least one receiving device to receive the progress information fromthe originating device, the at least one receiving device having accessto a representation of the content corresponding to a format differentfrom a format associated with the progress information; modify, prior totransmitting the progress information to the at least one receivingdevice, at least a portion of the progress information based on anelapsed time since the progress information was collected by theoriginating device; transmit the progress information to the at leastone receiving device; and automatically cause the incorporation of theprogress information at the identified at least one receiving device. 2.A system for managing the presentation of digital content, thepresentation of the digital content to a user of a wireless deviceoperative to be defined according to a plurality of reference pointswithin the digital content, the system comprising: a computing systemcomprising a processor and a memory for executing computer-executableinstructions, the computer-executable instructions implementing aninterface component that is operative to: obtain synchronizationinformation from the wireless device corresponding to presentation ofthe digital content, the synchronization information associated with areference point associated with the digital content; and a computingsystem comprising a processor and a memory for executingcomputer-executable instructions, the computer-executable instructionsimplementing a data processing component that is operative to: identifyone or more receiving devices to receive a synchronization notification,the one or more receiving devices being associated with the wirelessdevice according to an identifiable account; obtain at least one requestfor synchronization information from at least one receiving device, therequest for synchronization information responsive to the receivedsynchronization notification transmitted to the one or more receivingdevices; modify, prior to transmitting to the at least one receivingdevice, at least a subset of the synchronization information, whereinthe modification of the at least the subset of the synchronizationinformation corresponds to a modification of the reference pointincluded in the synchronization information based on an elapsed timesince the collection of the synchronization information; identify atleast a subset of the synchronization information to be transmitted tothe at least one receiving device, the subset of the synchronizationinformation being determined as a function of at least one of acharacteristic of a corresponding requesting receiving device and acharacteristic of the content associated with the synchronizationinformation; and cause the transmission of the subset of synchronizationinformation to the at least one receiving device.
 3. The system asrecited in claim 2, wherein the presentation of the digital content to auser of the wireless device corresponds to rendering of the digitalcontent.
 4. The system as recited in claim 3, wherein rendering of thedigital content corresponds to a visual rendering of the digitalcontent.
 5. The system as recited in claim 3, wherein rendering of thedigital content corresponds to an aural rendering of the digitalcontent.
 6. A system for managing the presentation of contentcomprising: a computing system comprising a processor and a memory forexecuting computer-executable instructions, the computer-executableinstructions implementing a synchronization processing component thatcollects progress information associated with content, the contentincluding a plurality of reference points and the progress informationcorresponding to information associated with at least one referencepoint defining a current state of presentation of the content on anoriginating device; and a computing system comprising a processor and amemory for executing computer-executable instructions, thecomputer-executable instructions implementing a communication managementcomponent that: obtains the collected progress information, the progressinformation being collected based on a determination of asynchronization event on the originating device; modifies, prior totransmitting the progress information to at least one receiving device,at least a portion of the progress information based on an elapsed timesince the progress information was collected on the originating device;and causes transmission of at least a subset of the progress informationto the at least one receiving device, wherein the at least one receivingdevice receives less than all progress information based on a preferenceand wherein the at least one receiving device is otherwise capable ofimplementing the progress information in the presentation of content onthe receiving device.
 7. The system as recited in claim 6, wherein theprogress information corresponds to additional information attributed tothe at least one reference point of the content.
 8. The system asrecited in claim 7, wherein the additional information includes at leastone of a highlight, an annotation, and a bookmark.
 9. The system asrecited in claim 7, wherein the additional information includes aselection of at least a subset of the content for copying.
 10. Thesystem as recited in claim 6, wherein the determination of asynchronization event includes a determination by the originating deviceof the synchronization event.
 11. The system as recited in claim 6,wherein the synchronization event corresponds to a determined change indevice performance metrics associated with the originating device. 12.The system as recited in claim 6, wherein the synchronization eventcorresponds to receipt of a user initiated command to synchronizecontent.
 13. The system as recited in claim 6, wherein the transmissionof the at least the subset of the progress information to the at leastone receiving device is based on at least one characteristic of acorresponding at least one receiving device.
 14. The system as recitedin claim 6, wherein the transmission of the at least the subset of theprogress information to the at least one receiving device is based on atleast one characteristic of the content.
 15. The system as recited inclaim 6, wherein causing the transmission of the at least the subset ofthe progress information includes causing the transmission of the atleast the subset of the progress information from the communicationmanagement component.
 16. The system as recited in claim 6, whereincausing the transmission of the at least the subset of the progressinformation includes causing the transmission of the at least the subsetof the progress information from a peer device.
 17. The system asrecited in claim 6, wherein causing the transmission of the at least thesubset of the progress information includes causing the transmission ofthe at least the subset of the progress information from the originatingdevice.
 18. The system as recited in claim 6, wherein at least one ofthe originating device or the at least one receiving device correspondsto a wireless device.
 19. The system as recited in claim 6, wherein atleast one of the originating device or the at least one receiving devicecorresponds to a portable device.
 20. The system as recited in claim 6,wherein at least one of the originating device or the at least onereceiving device corresponds to a consumer electronics device.
 21. Thesystem as recited in claim 6, wherein at least one of the originatingdevice or the at least one receiving device corresponds to a device foroperation in a vehicle.
 22. A method for managing the presentation ofcontent comprising: collecting information associated with thepresentation of a first representation of content on a device, whereinthe content is associated with a set of tracking points and wherein theinformation associated with the presentation of the first representationof content includes an identification of at least one tracking pointfrom the set of tracking points; modifying, prior to transmission of theinformation with regard to a second representation of the content on thedevice, the at least one tracking point in the information associatedwith the presentation of the first representation of the content on thedevice based on an elapsed time since the collection of the information;determining whether a synchronization event has occurred; and causingtransmission and incorporation of the collected information with regardto a second representation of the content on the device, wherein causingthe incorporation is responsive to the synchronization event.
 23. Themethod as recited in claim 22, wherein the collected informationcorresponds to information generated by the device during thepresentation of the first representation of the content.
 24. The methodas recited in claim 22, wherein determining whether the synchronizationevent has occurred includes identifying device performance metricsindicative of the synchronization event.
 25. The method as recited inclaim 24, wherein the performance metrics include a current geographiclocation associated with an unavailability of the device.
 26. The methodas recited in claim 24, wherein the performance metrics include anavailability of a wireless communication component of the device. 27.The method as recited in claim 22, wherein the first and secondrepresentations correspond to different formats of the content.
 28. Themethod as recited in claim 22, wherein determining whether thesynchronization event has occurred includes obtaining data indicative ofa user command to synchronize content.
 29. The method as recited inclaim 22 further comprising causing the transmission of the informationto a communication management component.
 30. The method as recited inclaim 22 further comprising causing the transmission of the informationresponsive to the synchronization event to at least one peer device. 31.The method as recited in claim 30, wherein the peer device is identifiedaccording to an association with an identifiable account.
 32. A methodfor managing the presentation of content, the presentation of thecontent on a device being defined by a plurality of reference points,the method comprising: obtaining progress information from anoriginating device, the progress information associated with thepresentation of content on the originating device and the progressinformation associated with the presentation of the contentcorresponding to an identification of at least one reference point;identifying at least a subset of the progress information to betransmitted to one or more receiving devices; modifying, prior totransmitting to the one or more receiving devices, at least a portion ofthe progress information based on an elapsed time since the progressinformation was obtained from the originating device; and causingtransmission of the at least a subset of the progress information to theone or more receiving devices, wherein at least one receiving device ofthe one or more receiving devices receives less than all of the progressinformation based on a preference and wherein the at least one receivingdevice is otherwise capable of implementing the progress information inthe presentation of content.
 33. The method as recited in claim 32,wherein the one or more receiving devices are associated with theoriginating device according to an identifiable account.
 34. The methodas recited in claim 33, wherein the one or more receiving devicesassociated with the originating device maintain a representation of thecontent corresponding to the progress information.
 35. The method asrecited in claim 32 further comprising: identifying one or morereceiving devices to receive a synchronization notification; causing thetransmission of synchronization notifications to the one or morereceiving devices; and obtaining at least one request for progressinformation from a receiving device, wherein the request for progressinformation is responsive to the transmitted synchronizationnotification transmitted to the one or more receiving devices.
 36. Themethod as recited in claim 32 further comprising determining the subsetof the synchronization information as a function of at least one of acharacteristic of a corresponding at least one receiving device and acharacteristic of the content.
 37. The method as recited in claim 36,wherein the characteristic of the receiving device includes a memorycapacity of the device.
 38. The method as recited in claim 36, whereinthe characteristic of the receiving device includes a synchronizationconfiguration that specifies progress information that can be processedby the receiving device.
 39. The method as recited in claim 36, whereinthe characteristic of the content includes a format for presenting thecontent.
 40. The method as recited in claim 39, wherein the formatcorresponds to a visual presentation of the content.
 41. The method asrecited in claim 39, wherein the format corresponds to an auralpresentation of the content.
 42. The method as recited in claim 32,wherein causing the transmission of the subset of progress informationto the one or more receiving devices includes causing the transmissionof the subset of progress information from a server device.
 43. Themethod as recited in claim 32, wherein causing the transmission of thesubset of progress information to the one or more receiving devicesincludes causing the transmission of the subset of progress informationfrom a peer device.
 44. The method as recited in claim 32 furthercomprising processing the progress information obtained from theoriginating device.
 45. The method as recited in claim 44, whereinprocessing the progress information obtained from the originating deviceincludes performing conflict resolution with previously receivedprogress information.
 46. The method as recited in claim 44, whereinprocessing the progress information obtained from the originating deviceincludes adjusting the progress information.
 47. The method as recitedin claim 46, wherein adjusting the progress information includesadjusting the progress information as a function of a time differencebetween presentations of the content.
 48. A system for managing thepresentation of digital content, wherein presentation of the digitalcontent to a user of a device can be defined according to at least oneof a plurality of reference points within the digital content, thesystem comprising: a computing system comprising a processor and amemory for executing computer-executable instructions, thecomputer-executable instructions implementing an interface componentthat is operative to: obtain synchronization information correspondingto presentation of the digital content, the synchronization informationdefined in accordance with a reference point within the digital content;and a computing system comprising a processor and a memory for executingcomputer-executable instructions, the computer-executable instructionsimplementing a data processing component that is operative to: identifyone or more representations of the digital content accessible by thedevice, at least one representation of the content corresponding to aformat different from a format associated with the synchronizationinformation; modify, prior to transmission in accordance with theidentified one or more representations of the digital content, at leasta subset of the synchronization information, wherein the modification ofthe at least a subset of the synchronization information corresponds toa modification of the reference point included in the synchronizationinformation based on an elapsed time since the collection of thesynchronization information; and automatically cause the transmissionand incorporation of the modified subset of synchronization informationin accordance with the identified one or more representations of thedigital content accessible by the device.